JP6284164B2 - 接合構造体、及び接合構造体の製造方法 - Google Patents
接合構造体、及び接合構造体の製造方法 Download PDFInfo
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- JP6284164B2 JP6284164B2 JP2015560078A JP2015560078A JP6284164B2 JP 6284164 B2 JP6284164 B2 JP 6284164B2 JP 2015560078 A JP2015560078 A JP 2015560078A JP 2015560078 A JP2015560078 A JP 2015560078A JP 6284164 B2 JP6284164 B2 JP 6284164B2
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- metal film
- metal
- semiconductor element
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- 238000004519 manufacturing process Methods 0.000 title claims description 27
- 229910052751 metal Inorganic materials 0.000 claims description 378
- 239000002184 metal Substances 0.000 claims description 378
- 239000004065 semiconductor Substances 0.000 claims description 133
- 239000000758 substrate Substances 0.000 claims description 124
- 230000035882 stress Effects 0.000 claims description 70
- 239000000463 material Substances 0.000 claims description 68
- 230000005012 migration Effects 0.000 claims description 63
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- 238000005304 joining Methods 0.000 claims description 37
- 239000006096 absorbing agent Substances 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 30
- 239000013078 crystal Substances 0.000 claims description 26
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 23
- 229910052710 silicon Inorganic materials 0.000 claims description 23
- 239000010703 silicon Substances 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 19
- 239000012790 adhesive layer Substances 0.000 claims description 13
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 12
- 229910052750 molybdenum Inorganic materials 0.000 claims description 12
- 239000011733 molybdenum Substances 0.000 claims description 12
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 12
- 229910052721 tungsten Inorganic materials 0.000 claims description 12
- 239000010937 tungsten Substances 0.000 claims description 12
- 239000011358 absorbing material Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 238000006479 redox reaction Methods 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 40
- 229910052709 silver Inorganic materials 0.000 description 40
- 239000004332 silver Substances 0.000 description 40
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 31
- 229910052802 copper Inorganic materials 0.000 description 31
- 239000010949 copper Substances 0.000 description 31
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 13
- 229910052719 titanium Inorganic materials 0.000 description 13
- 239000010936 titanium Substances 0.000 description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 12
- 229910045601 alloy Inorganic materials 0.000 description 11
- 239000000956 alloy Substances 0.000 description 11
- 229910052759 nickel Inorganic materials 0.000 description 11
- 229910002601 GaN Inorganic materials 0.000 description 10
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 10
- 229910017052 cobalt Inorganic materials 0.000 description 9
- 239000010941 cobalt Substances 0.000 description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 9
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 9
- 229910010271 silicon carbide Inorganic materials 0.000 description 9
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 7
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- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 6
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 229910052758 niobium Inorganic materials 0.000 description 5
- 239000010955 niobium Substances 0.000 description 5
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 229910052763 palladium Inorganic materials 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- 238000007740 vapor deposition Methods 0.000 description 4
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
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- 229910002804 graphite Inorganic materials 0.000 description 2
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- 229910052735 hafnium Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
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- 239000011800 void material Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical group [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
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- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- -1 hafnium nitride Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
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- 238000006722 reduction reaction Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
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- H01L2224/838—Bonding techniques
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- H01L2224/8382—Diffusion bonding
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Description
本発明の第一の実施形態に係る接合構造体(第一の接合構造体)は、基板と、金属膜と、半導体素子とを、この順に含む。金属膜を構成する金属がストレスマイグレーションによって拡散することにより、金属膜を介して基板と半導体素子とが接合されている。
基板110を構成する材質は、例えば、ガラス、シリカガラス、シリコン、シリコンカーバイド、ガリウムナイトライド、シリコン上に形成したガリウムナイトライド、シリコンナイトライド、アルミニウムナイトライド、又はアルミナ、炭素、タングステン、ニオブ、モリブデン、チタン、イオンバー合金(鉄、ニッケル、マンガン及び炭素を構成成分とする合金)、又はコバール合金(鉄、ニッケル、コバルト、マンガン及びシリコンを構成成分とする合金)である。
金属膜120を構成する金属は、例えば、銅、銀、亜鉛、金、パラジウム、アルミニウム、ニッケル、コバルト、又は鉄である。汎用性及びコストパフォーマンスに優れ、ストレスマイグレーションを容易に発生し得る熱膨張率を有するために、金属膜120を構成する金属は、銅、銀、亜鉛、アルミニウム、コバルト、又はニッケルが好ましい。
半導体素子130を構成する材質としては、例えば、基板110を構成する材質として上記に例示されたものが挙げられる。
アルミニウム:23.0×10-6
鉄:12.0×10-6
コバルト:13.0×10-6
ニッケル:12.8×10-6
金:14.3×10-6
銅:16.8×10-6
亜鉛:30.2×10-6
銀:18.9×10-6
パラジウム:11.8×10-6
アルミナ:7.2×10-6
シリコン:2.6×10-6
タングステン:4.3×10-6
ニオブ:8.0×10-6
モリブデン:4.9×10-6
シリコンカーバイド::3.7×10-6
ガリウムナイトライド:3.0×10-6
シリコンナイトライド:3.0×10-6
アルミニウムナイトライド:5.0×10-6
アルミナ:7.0×10-6
グラファイト:0.1×10-6〜7.0×10-6
チタン:11×10-6
インバー合金:1.2×10-6
コバール合金:5.0×10-6
図4を参照して、本実施形態の接合構造体の別の態様(第二の接合構造体)を説明する。図4に示すように、第二の接合構造体200は、基板210と、第一金属膜220と、熱応力吸収材230と、第二金属膜240と、半導体素子250とを、この順に含む。第二の接合構造体においては、第一金属膜220を構成する金属がストレスマイグレーションによって拡散し、第一金属膜220を介して基板210と熱応力吸収材230とが接合している。更に、第二金属膜240を構成する金属がストレスマイグレーションによって拡散し、第二金属膜240を介して半導体素子250と熱応力吸収材230とが接合している。
基板210を構成する材質は、例えば、ガラス、シリカガラス、シリコン、シリコンカーバイド、ガリウムナイトライド、シリコン上に形成したガリウムナイトライド、炭素、シリコンナイトライド、アルミニウムナイトライド、又はアルミナ、タングステン、ニオブ、モリブデン、チタン、イオンバー合金(鉄、ニッケル、マンガン及び炭素を構成成分とする合金)、又はコバール合金(鉄、ニッケル、コバルト、マンガン及びシリコンを構成成分とする合金)である。
第一金属膜220を構成する金属は、例えば、銅、銀、亜鉛、金、パラジウム、アルミニウム、ニッケル、コバルト、又は鉄である。汎用性及びコストパフォーマンスに優れ、ストレスマイグレーションを容易に発生し得る熱膨張率を有するために、銅、銀、亜鉛、アルミニウム、コバルト、又はニッケルが好ましい。
第二金属膜240を構成する金属は、例えば、銅、銀、亜鉛、金、パラジウム、アルミニウム、ニッケル、コバルト、又は鉄である。汎用性及びコストパフォーマンスに優れ、ストレスマイグレーションを容易に発生し得る熱膨張率を有するために、銅、銀、亜鉛、アルミニウム、コバルト、又はニッケルが好ましい。
半導体素子250を構成する材質としては、例えば、基板210を構成する材質として上記に例示されたものが挙げられる。
熱応力吸収材230を設けることにより、加熱時の熱衝撃を抑えることができ、良好なストレスマイグレーションを発現させることができる。熱応力吸収材230を構成する材質としては、例えば、上記の基板210を構成する材質、又は半導体素子250を構成する材質と同様のものが挙げられる。良好なストレスマイグレーションを発現させるために、熱応力吸収材230を構成する材質としては、シリコン、モリブデン、タングステン、グラファイト、シリコンカーバイド、シリコンナイトライド、アルミニウムナイトライド、アルミナ、又はインバー合金を用いることが好ましい。
なお、基板210、熱応力吸収材230および半導体素子250のそれぞれは、必ずしも平板形状でなくてもよく、それらのうちのいずれかは、フレキシブル性を有していてもよい。あるいは、基板210、熱応力吸収材230および半導体素子250のうちのいずれかは、曲面形状を有していてもよい。
金属膜形成工程は、基板表面への金属膜の形成、又は半導体素子表面への金属膜の形成を行う工程である。基板表面、又は半導体素子の表面に金属膜を形成するには、例えば、スパッタリング処理、めっき、又は蒸着のような手法を用いることができる。金属膜の形成は、複数回行うことができる。
金属膜形成工程において基板表面及び半導体素子表面の何れにも金属膜を形成した場合、積層体製造工程は、基板表面に形成された金属膜と半導体素子表面に形成された金属膜とが接触するように、基板と半導体素子とを重ねて積層体を製造する工程である。この場合、製造される接合構造体は、複数の金属膜が積層された構成を有する金属膜を含むものとなる。
接合工程は、積層体製造工程で得られた積層体を加熱し、基板表面に形成された金属膜を構成する金属及び/又は半導体素子表面に形成された金属膜を構成する金属をストレスマイグレーションによって拡散させることにより、基板と半導体素子との界面間の空間を金属で埋めて両者を接合する工程である。
(金属膜形成工程)
基板としてのシリコンウエハ(サイズ:6mm×6mm×0.5mm)を準備した。シリコンの片側表面に、チタンをスパッタリング処理して接着層(厚さ:0.04μm)を形成した。チタンからなる接着層の表面に銅を蒸着して(蒸着速度:30nm/分)、基板表面に金属膜(銅膜)(厚さ:1.0μm)を形成した。
続いて、基板表面に形成された金属膜と半導体素子表面に形成された金属膜とを接触させるようにして、2枚のシリコンウエハ(基板及び半導体素子)を重ね合わせ、積層体を得た。
得られた積層体を動かないように固定し、250℃で60分間加熱した。加熱により、基板表面に形成された金属膜と半導体素子表面に形成された金属膜の内部では、それぞれ、応力勾配が生じ、ストレスマイグレーションが発現することにより金属が拡散した。これらの金属膜は拡散された金属の界面で一体化し、2枚のシリコンウエハを接合し、実施例1の接合構造体を得た。接合工程は、ギ酸(気体)雰囲気の環境下で行った。実施例1の接合構造体の断面をSEMを用いて撮影したところ、接合欠陥(例えば、ボイド又はクラック)の発生が抑制されており、良好に接合されていることを確認した。
基板表面及び半導体素子表面に形成される金属膜を構成する金属として、銅に代えて銀を用いる以外は、実施例1と概ね同様の操作を行って、実施例2の接合構造体を得た。実施例2の接合構造体の断面をSEMを用いて撮影したところ、接合欠陥の発生が抑制されており、良好に接合されていることを確認した。
半導体素子表面に形成される金属膜を構成する金属として、銅に代えて銀を用いる以外は、実施例1と概ね同様の操作を行って、実施例3の接合構造体を得た。実施例3の接合構造体の断面をSEMを用いて撮影したところ、接合欠陥の発生が抑制されており、良好に接合されていることを確認した。
積層体製造工程において、基板表面に形成された金属膜と半導体素子表面に形成された金属膜との間に、表面全体が銀膜で被覆された熱応力吸収材を積層させた以外は、実施例2と概ね同様の手法により、実施例4の接合構造体を得た。熱応力吸収材は、モリブデン板(厚さ:50μm)の表面全体に、厚さ1.0μmで銀を蒸着させて得た。実施例4の接合構造体の断面をSEMを用いて撮影したところ、接合欠陥の発生が抑制されており、良好に接合されていることを確認した。
基板及び半導体素子として、シリコンウエハに代えて銅板(サイズ:6mm×6mm×0.5mm、3mm×3mm×0.5mm)を用いた以外は、実施例2と概ね同様の手法により、接合構造体を得ようとした。しかし、銅の熱膨張率と銀の熱膨張率とが同程度であるため(銀の熱膨張率:18.9×10-6、銅の熱膨張率:16.8×10-6)、ストレスマイグレーションが発現しなかった。そのため、基板と半導体素子とを良好に接合することができず、接合構造体を得ることができなかった。
110 基板
120 金属膜
130 半導体素子
200 第二の接合構造体
210 基板
220 基板表面に形成された金属膜
230 熱応力吸収材
240 半導体素子表面に形成された金属膜
250 半導体素子
260 貫通孔
270 溝
280 円環状部材
140 接着層
150 接合界面
160 金属膜が一体化している部分
Claims (15)
- 基板と、
金属膜と、
半導体素子と、
前記基板と前記金属膜との間および前記金属膜と前記半導体素子との間のうちの少なくとも一方に設けられた接着層と
を含む接合構造体であって、
前記金属膜を構成する金属はストレスマイグレーションによって拡散しており、
前記基板と前記半導体素子とが前記金属膜を介して接合されている、接合構造体。 - 前記基板を構成する材質及び前記半導体素子を構成する材質の少なくとも一方の熱膨張率が、前記金属膜を構成する金属の熱膨張率より低い、請求項1に記載の接合構造体。
- 前記金属膜による前記接合は、前記接合の前の表面における酸化還元反応によって進行する、請求項1又は2に記載の接合構造体。
- 前記金属膜が複数の金属膜が積層された構成を有する、請求項1又は2に記載の接合構造体。
- 前記金属膜を構成する金属の結晶状態が微細であるか、又は柱状晶である、請求項1〜4の何れか1項に記載の接合構造体。
- 基板と、
第一金属膜と、
熱応力吸収材と、
第二金属膜と、
半導体素子とを、この順に含む接合構造体であって、
前記第一金属膜を構成する金属及び前記第二金属膜を構成する金属の少なくとも一方はストレスマイグレーションによって拡散しており、
前記基板と前記熱応力吸収材とが前記第一金属膜を介して接合されており、
前記半導体素子と前記熱応力吸収材とが前記第二金属膜を介して接合されている、接合構造体。 - 前記基板を構成する材質の熱膨張率が前記第一金属膜を構成する金属の熱膨張率よりも低く、かつ、前記半導体素子を構成する材質の熱膨張率が前記第二金属膜を構成する金属の熱膨張率より低い、請求項6に記載の接合構造体。
- 前記熱応力吸収材を構成する材質の熱膨張率が、前記第一金属膜を構成する金属の熱膨張率及び前記第二金属膜を構成する金属の熱膨張率より低い、請求項6又は7に記載の接合構造体。
- 前記第一金属膜を構成する金属及び前記第二金属膜を構成する金属の少なくとも一方の結晶状態が微細であるか、又は柱状晶である、請求項6〜8の何れか1項に記載の接合構造体。
- 前記熱応力吸収材を構成する材質が、シリコン、モリブデン、又はタングステンである、請求項6〜9の何れか1項に記載の接合構造体。
- 前記熱応力吸収材が、貫通孔、又は窪みを有する、請求項6〜10の何れか1項に記載の接合構造体。
- 前記第一金属膜および前記第二金属膜のうちの少なくとも一方による前記接合は、前記接合の前の表面における酸化還元反応によって進行する、請求項6〜11の何れか1項に記載の接合構造体。
- 基板表面への金属膜の形成、及び半導体素子表面への金属膜の形成のうち、少なくとも一方を行う金属膜形成工程と、
前記基板表面に形成された金属膜と前記半導体素子表面に形成された金属膜とが接触するように、又は、前記基板表面に形成された金属膜若しくは前記半導体素子表面に形成された金属膜を介するように、前記基板と前記半導体素子とを対向して重ねて積層体を製造する積層体製造工程と、
前記積層体を加熱し、前記基板表面に形成された金属膜を構成する金属及び前記半導体素子表面に形成された金属膜を構成する金属の少なくとも一方をストレスマイグレーションによって拡散させ、前記基板と前記半導体素子とを接合する接合工程と
を含み、
前記金属膜形成工程において、前記基板と前記金属膜との間および前記金属膜と前記半導体素子との間のうちの少なくとも一方に接着層を形成する、接合構造体の製造方法。 - 基板表面への金属膜の形成、及び半導体素子表面への金属膜の形成のうち、少なくとも一方を行う金属膜形成工程と、
前記基板表面に形成された金属膜と前記半導体素子表面に形成された金属膜とが接触するように、又は、前記基板表面に形成された金属膜若しくは前記半導体素子表面に形成された金属膜を介するように、前記基板と前記半導体素子とを対向して重ねて積層体を製造する積層体製造工程と、
前記積層体を加熱し、前記基板表面に形成された金属膜を構成する金属及び前記半導体素子表面に形成された金属膜を構成する金属の少なくとも一方をストレスマイグレーションによって拡散させ、前記基板と前記半導体素子とを接合する接合工程と
を含み、
前記金属膜形成工程において、基板表面への金属膜の形成、及び半導体素子表面への金属膜の形成を行い、かつ、
前記積層体製造工程において、前記基板表面に形成された金属膜と、前記半導体素子表面に形成された金属膜との間に熱応力吸収材を積層させる、接合構造体の製造方法。 - 前記接合工程を100℃以上400℃以下の温度で実行する、請求項13又は14に記載の接合構造体の製造方法。
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JP2011071301A (ja) | 2009-09-25 | 2011-04-07 | Honda Motor Co Ltd | 金属ナノ粒子を用いた接合方法及び接合体 |
JP2012015313A (ja) | 2010-06-30 | 2012-01-19 | Kobe Steel Ltd | 半導体素子を有する半導体装置 |
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